docs: def set_default_shutit_pexpect_session(self, shutit_pexpect_session):
  		"""Sets the default pexpect child.
  
  		@param shutit_pexpect_session: pexpect child to set as default
  		"""
  		assert isinstance(shutit_pexpect_session, ShutItPexpectSession), shutit_util.print_debug()
  		self.current_shutit_pexpect_session = shutit_pexpect_session
  		return True